3y-18=15

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Solution for 3y-18=15 equation: 


Simplifying
3y + -18 = 15

Reorder the terms:
-18 + 3y = 15

Solving
-18 + 3y = 15

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '18' to each side of the equation.
-18 + 18 + 3y = 15 + 18

Combine like terms: -18 + 18 = 0
0 + 3y = 15 + 18
3y = 15 + 18

Combine like terms: 15 + 18 = 33
3y = 33

Divide each side by '3'.
y = 11

Simplifying
y = 11

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